I doubt if there is a way to find that out, but I'll answer your question with a question.....What difference would it make? At any time a property probably has several potential buyers that are "following" it. As long as nobody takes action, and just "follows", the house is not going anywhere.
The property is probably being marketing in other ways as well, so knowing if others are following through one vehicle, does not assure that there is not interest elsewhere.
I think the question you have to ask yourself is this: "would I be disappointed if someone stopped following, and actually bought the house?" If you would be disappointed, it would probably be a good idea to act on it now.... more